Happy New Year Carlo! Sharpness looks good here. You need a little help from the light to properly expose these guys. As presented the whites look a little hot and the blacks look blocked; you could probably improve things by reprocessing. The head is angled slightly away from the viewer. And I might try a little CW rotation. Thanks for sharing!
Interesting looking fellow, and Im sure not the easiet to expose throughout. In addition to Doug's comments, I feel you should always try and capture a lower angle wherever possible.
Wished you had better conditions for the shot, light angle, lower shooting angle, and head turn. But sometimes we have to take what we are given and make the best of it..